8 7 9 5 3 3 2 8 9 1 1 2 6 9 1 3 7 5 8 8 1 6 3 4 1 2 2 8 4 7 6 3 2 4 5 9 21-12-2018.......facil 21-12-2018 www.daily-sudoku-puzzle.com

8 7 9 1 6 5 2 4 3 6 3 2 8 4 7 9 1 5 1 4 5 9 2 3 6 8 7 2 5 6 4 9 1 3 7 8 4 9 3 5 7 8 1 2 6 7 8 1 6 3 2 5 9 4 5 6 4 7 1 9 8 3 2 9 2 8 3 5 4 7 6 1 3 1 7 2 8 6 4 5 9

1=>(1,4) | 6=>(1,5) | 2=>(1,7) | 6=>(2,1) | 5=>(3,3) | 1=>(9,2) | 3=>(5,3) | 2=>(4,1) | 4=>(4,4) | 8=>(4,9) | 5=>(8,5) | 8=>(9,5) | 2=>(6,6) | 8=>(7,7) | 1=>(5,7) | 5=>(6,7) | 1=>(8,9) | 3=>(8,4) | 3=>(7,8) | 4=>(1,8) | 5=>(7,1) | 9=>(8,1) | 4=>(3,2) | 5=>(2,9) | 7=>(2,6) | 3=>(3,6) | 4=>(2,5) | 8=>(3,8) | 6=>(4,3) | 7=>(9,3) | 5=>(4,2) | 2=>(5,8) | 7=>(5,5) | 7=>(6,1) | 4=>(6,9) | 6=>(5,9) | 4=>(5,1) | 9=>(5,2) | 6=>(7,2) | 9=>(3,4) | 7=>(3,9) | 7=>(7,4) | 9=>(6,8) | 9=>(7,6) | 6=>(9,6) |